The quest Bounty: Dira Folvani from the Uman bounty quests doesn't get removed from the Quests list in the journal after completion after bringing her in alive.
Dialog under "spreading epidemic" is fine as it's last quest: "You have done all that you can for now. I shall send warning to Necrom, the Holy City of the Dead, and report that a cult of Molag Bal has been discovered. But first, I should reward you: please, take this staff, my child.".
On a bookshelf downstairs there are two deprecated assets clipping into each other, though it creates a glitchy effect which looks pretty cool at least. In the same room and upstairs there are a bunch of floaters and other bugs, perhaps the objects they were placed on got their meshes changed?
All guild npcs in the main guildhall area start wandering during the final segment of the final quest, but dont stop when the quest is finished, since their wander radius is never set to be stationary again.